Segments - Schedule of Net Revenue (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 operating_segment	Sep. 30, 2012
Segment Reporting Information [Line Items]
Number of operating segments			2
Net revenue	$ 14,509,050	$ 15,481,425	$ 43,559,257	$ 37,122,558
Partner Network
Segment Reporting Information [Line Items]
Net revenue	10,807,377	6,472,905	28,232,281	17,713,488
Percent of revenue	74.50%	41.80%	64.80%	47.70%
Owned and Operated Network
Segment Reporting Information [Line Items]
Net revenue	3,701,673	9,008,520	15,326,976	19,409,070
Percent of revenue	25.50%	58.20%	35.20%	52.30%
Total Net Revenue
Segment Reporting Information [Line Items]
Net revenue	$ 14,509,050	$ 15,481,425	$ 43,559,257	$ 37,122,558
Percent of revenue	100.00%	100.00%	100.00%	100.00%